Process for the production of reactionary substances for the generation of heat.



ALBERT LANG, 0F KARLSRUHE, GERMANY.

PROCESS FOR BBOBITCTION 0F REACTIONARY SUBSTANCES FOR THE GENERATIONPatented Aug. 13, 1912.

OF HEAT.

ll ,035,22. Specification of Letters Patent.

No Drawing.

To all whom it may concern:

Be it known that I, ALBERT LANG, a subject of the Grand Duke of Baden,residing at Karlsruhe, in Baden, Germany, have invented new and usefulImprovements in Processes for the Production of Beactionary Substancesfor the Generation of Heat, of which the following is a specification.

My improved process comprises the mixing in equivalent proportions of ametal such as iron and sulfur; the heat liberated by the combination ofthese substances being applied for the heating .of solid, liquid orgaseous materials, by placing the preparation within an inclosed vesselsurrounded by the solid, liquid or gaseous substance which is to beheated.

Tn carrying my invention into eifect I mix the ingredients and form theminto a solid mass or -'cake. This is preferably effected by fusing ormelting the sulfur at a temperature below its ignition point, andstirring into it the requisite quantity of finely divided metallic ironfilings or the like until the two elements are sufiicientlyintermingled, and allowing the compound to cool in suitable molds. Thecakes thus formed are convenient to handle'and are so firm after thesulfur has solidified that a breaking up during the carriage thereof isnot likely to occur.

The ignition of the compound is efl'ected matches, the comp Applicationfiled Octooer 19, 1908. Serial No. 458,490.

by means of a preparation of greater combustibility such, for instance,as that employed for the heads of so called Swedish osition whereof isWell known. The ignition having been occasioned by friction or otherwiseof such a preparation, the cake or material is inclosed as aforesaid,and the exothermic reaction propagates itself throughout the entiremass. During the combining of the sulfur with the metallic iron, nogaseous products are evolved. The reaction can therefore be effected ina closed space such as a tube and the entire heat set free can beutilized by inclosing the tube in the material to be heated.

Having thus described my invention what I claim is A process for theproduction of a reactionary substance composed of sulfur and iron forthe purpose of generating heat, consisting in incorporating finelydivided iron in molten sulfur in chemical equivalent quantities.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

ALBERT LANG.

Witnesses HANS UBERT, ANNA HAUSER.

